Cellular uptake, subcellular localization and photodamaging effect of Temoporfin (mTHPC) in nasopharyngeal carcinoma cells: comparison with hematoporphyrin derivative

被引：80

作者：

Yow, CMN ^{[1
]}

Chen, JY

Mak, NK

Cheung, NH

Leung, AWN

机构：

[1] Hong Kong Polytech Univ, Dept Nursing & Hlth Sci, Hong Kong, Hong Kong, Peoples R China

[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[3] Hong Kong Baptist Univ, Dept Biol, Hong Kong, Hong Kong, Peoples R China

[4] Hong Kong Baptist Univ, Dept Phys, Hong Kong, Hong Kong, Peoples R China

来源：

CANCER LETTERS | 2000年 / 157卷 / 02期

基金：

中国国家自然科学基金;

关键词：

nasopharyngeal carcinoma; photosensitizers; photodynamic therapy;

D O I：

10.1016/S0304-3835(00)00453-5

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Temoporfin (meta-tetra (hydroxyphenyl)chlorin; mTHPC) potentiated a 100-fold higher cytotoxic effect than hematopor phyrin derivative (HPD) on two nasopharyngeal carcinoma cell lines (HK1 and CNE2) in terms of the overall photodynamic therapy (PDT) dose. The cellular uptake, evaluated by Row cytometry and spectrophotometry demonstrated that mTHPC exhibited higher uptake ability than HPD. Confocal laser scanning microscopy detection for both the sensitizer and mitochondria probe on the same cell images revealed that both drugs accumulated diffusely in the cytoplasm and that mitochrondria is a target organelle. Photo-activation ruptured the mitochrondria. with more pronounced mitochondnal damage being observed in mTHPC-PDT course. This correlated well with the cell photokilling efficiency of mTHPC. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.

引用

页码：123 / 131

页数：9

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